# US 12,005,964 B2 · Composite structure and manufacturing method therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,005,964 B2 - Document ID: US12005964B2 - Status: Granted - Kind: B2 - Application number: 17/437,605 - Filed: 2019-03-12 - Published: 2022-06-16 - Granted: 2024-06-11 - Earliest claimed: 2019-03-12 - Assignees: Nissan Motor Co., Ltd. - Applicants: Nissan Motor Co., Ltd. - Inventors: Toshikazu Torigaki; Shinichiro Takemoto; Naoya Matsuoka; Zhe Jiang - Web page: https://patentgrep.com/patent/US12005964B2 ## CPC - B62D 27/023: {Assembly of structural joints} - B29C 45/14467: {Joining articles or parts of a single article (B29C45/14377, B29C45/14385, B29C45/14581, B29C45/14614 and B29C45/006 take precedence)} - B62D 29/004: {the metal being over-moulded by the synthetic material, e.g. in a mould} - B62D 29/041: {Understructures} - B29C 45/14311: {using means for bonding the coating to the articles (B29C45/14795 takes precedence)} - B29C 2045/14327: {anchoring by forcing the material to pass through a hole in the article} - B29K 2705/02: Aluminium - B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M) - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract A composite structural body (A) includes a first metal member (M1) having a plate-like shape, a second metal member (M2) having a plate-like shape, and a resin member (R) that integrates the first metal member (M1) and the second metal member (M2) with each other. The resin member (R) includes a first resin layer (R1) that coats astride one main surface of the first metal member (M1) and one main surface of the second metal member (M2), and a second resin layer (R2) that coats astride another main surface of the first metal member (M1) and another main surface of the second metal member (M2). The composite structural body (A) is provided as a composite structural body that has satisfactory moldability, that is capable of securing sufficient strength, and that is suitable as a component of a structure such as a vehicle body. ## Claims ### Claim 1 A composite structural body, comprising: a first metal member having a plate-like shape; a second metal member having a plate-like shape; and a resin member that integrates the first metal member and the second metal member with each other, wherein: the resin member includes: a first resin layer that coats astride one main surface of the first metal member and one main surface of the second metal member, a second resin layer that coats astride another main surface of the first metal member and another main surface of the second metal member, and a link portion that links the first resin layer and the second resin layer to each other; one of the first metal member or the second metal member includes a recessed joint portion formed in conformity with a shape of an end portion of another metal member; and the end portion of the other of the first metal member or the second metal member is inserted in the joint portion of the one of the first metal member or the second metal member in an engaging manner. ### Claim 2 (depends on 1) The composite structural body according to claim 1, wherein the first metal member and the second metal member are arranged such that their main surfaces are continuous with each other. ### Claim 3 (depends on 1) The composite structural body according to claim 1, wherein at least one of the first resin layer and the second resin layer of the resin member includes a reinforcing portion that protrudes at a position of a boundary between the first metal member and the second metal member. ### Claim 4 (depends on 1) The composite structural body according to claim 1, wherein the first metal member and the second metal member are respectively formed into recess-protrusion shapes to be engaged with each other at the boundary between the first metal member and the second metal member. ### Claim 5 (depends on 1) The composite structural body according to claim 1, wherein: at least one of the first metal member and the second metal member includes an opening portion that communicates both a front surface and a rear surface with each other at the joint portion, and the link portion that links the first resin layer and the second resin layer to each other is formed in the opening portion. ### Claim 6 (depends on 3) The composite structural body according to claim 3, wherein the boundary between the first metal member and the second metal member is arranged out of a stress concentration point in the composite structural body. ### Claim 7 (depends on 1) The composite structural body according to claim 1, wherein a fine asperity is formed on the main surface of the first metal member and the main surface of the second metal member, the main surface of the first metal member and the main surface of the second metal member being coated with the resin member. ### Claim 8 (depends on 1) The composite structural body according to claim 1, wherein: the first metal member and the second metal member include an overlapping region in which at least a part of the first metal member and at least a part of the second metal member overlap with each other; a communication hole that is formed through the overlapping region; and the link portion that links the first resin layer and the second resin layer to each other is formed in the communication hole. ### Claim 9 (depends on 1) The composite structural body according to claim 1, wherein: the first resin layer is formed on the one main surface of the first metal member and the one main surface the second metal member; the second resin layer is formed in a local range of the other main surface of the first metal member and the other main surface of the second metal member; and a range in which the first resin layer is formed is wider than the local range in which the second resin layer is formed. ### Claim 10 (depends on 1) The composite structural body according to claim 1, wherein at least one of the first metal member and the second metal member includes a third metal member to be integrated by the resin member. ### Claim 11 (depends on 1) A manufacturing method for the composite structural body according to claim 1, the manufacturing method being implemented by using a mold assembly including a molding space conforming to the first metal member, the second metal member, and the resin member, the manufacturing method comprising: setting the first metal member and the second metal member in the molding space; forming a gap between the first metal member and the second metal member; charging a molten resin being a material of the resin member into the molding space from a side where the one main surface of the first metal member and the one main surface of the second metal member are arranged; and causing the molten resin to flow through the gap between the first metal member and the second metal member into a side where the other main surface of the first metal member and the other main surface of the second metal member are arranged, thereby forming the resin member including: the first resin layer, the second resin layer, and the link portion formed in the gap; and integrating the first metal member, the second metal member, and the resin member with each other. ### Claim 12 A composite structural body, comprising: a first metal member having a plate-like shape; a second metal member having a plate-like shape; and a resin member that integrates the first metal member and the second metal member with each other, wherein: the resin member includes: a first resin layer that coats astride one main surface of the first metal member and one main surface of the second metal member, and a second resin layer that coats astride another main surface of the first metal member and another main surface of the second metal member; the first metal member and the second metal member do not include a part in which the first metal member and the second metal member overlap with each other; and a fine asperity is formed on the main surface of the first metal member and the main surface of the second metal member, the main surface of the first metal member and the main surface of the second metal member being coated with the resin member. ### Claim 13 (depends on 12) The composite structural body according to claim 12, wherein the resin member includes a local range which is formed astride the first metal member and the second metal member.